0 0 0 [ 100, 100 ] 0 100 0 [ 200, 200 ] 200 0 0 [ 300, 300 ] 0 300 0 [ 100, 100 ] 100 300 0 [ 200, 200 ] 0 400 0 [ 100, 100 ] 300 300 0 [ 200, 200 ] 100 0 0 [ 100, 100 ]